★ Terahertz Ore Necklace ■ Product Name: Terahertz Ore Necklace. ■ Product Size: Inner circumference approx. 40cm (±5mm) Bead diameter approx. 4mm (±0.5mm) ★ Shipped by regular mail, without compensation. If you are concerned about regular mail, you can change to insured shipping. ★ With compensation and inquiry number ★ Mercari Mail Post Mini, plus 100 yen. ★ Arrives as fast as宅配便 (courier service), with compensation and inquiry number, Yamato Transport Nekopos. This is an artificial ore that emits terahertz waves. Si (silicon) ・ Terahertz ・ High purity 15N (99.9% or more) Terahertz ore is an artificial ore containing silicon, titanium, hematite, alumina, etc. Terahertz waves, which vibrate about 1 trillion times per second, have intermediate characteristics between radio waves and light. It is a wavelength that easily affects the movement of terahertz wave molecules, and will allow you to experience mysterious experiences and amazing effects on the human body, plants, and even materials. Various organisms regain their vitality by being exposed to terahertz waves. In other words, it is said that plants become less likely to rot and organisms regain their youthfulness. The effects of terahertz have been proven by recent research. Terahertz waves can penetrate various substances such as paper, wood, and plastic, and are expected to be applied in the medical field. In addition, terahertz waves overlap with far infrared rays in wavelength and are said to have a self-heating effect. ※ Due to the nature of the product, the raw stone may contain markings such as numbers and dents.